IAA RAS IAA Minor Planet Database

285571 (2000 PQ9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4324411214 ± 8.16e-10
Semi-major axis (a)1.9035657241 AU ± 5.85e-10
Inclination (i)13.48266244° ± 1.16e-06
Long. of Asc. Node (Ω)297.16245353° ± 7.40e-07
Arg. of Perihelion (ω)7.05697041° ± 3.81e-06
Mean Anomaly (M)231.96152491° ± 1.27e-06
Mean Motion (n)0.3752843568°/day ± 1.73e-10
Perihelion dist (q)1.08038563 AU ± 1.59e-09
Aphelion dist (Q)2.72674582 AU ± 1.76e-09
Orbital Period2.62634524 yr ± 1.21e-09
Physical Parameters
H (abs. magnitude)18.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.478″
Uncertainty0
Orbit TypeAmor
MOID0.064547 AU
Observations Used7147
Radar Obs Used1
Oppositions13
Arc Total2000-2021
First Observation Used2000-08-09
Last Observation Used2024-12-06
Observations (13272)
Date Type RA Dec Mag Band Observatory
2021-06-20 21:54:02 S 17 04 18.787 -68 46 49.19 – V C57
2021-06-20 21:54:02 s 1 -172033.23 6 +285576.29 8950.0 – C57
2021-06-20 22:04:02 S 17 04 20.503 -68 46 48.72 – V C57
2021-06-20 22:04:02 s 1 -172245.67 4 +285098.48 5950.0 – C57
2021-06-20 22:14:02 S 17 04 22.121 -68 46 47.10 – V C57
2021-06-20 22:14:02 s 1 -172457.45 9 +284619.62 950.0 – C57
2021-06-20 22:24:02 S 17 04 24.086 -68 46 46.88 – V C57
2021-06-20 22:24:02 s 1 -172668.58 6 +284139.69 3970.0 – C57
2021-06-20 22:34:02 S 17 04 25.543 -68 46 46.02 – V C57
2021-06-20 22:34:02 s 1 -172879.05 4 +283658.71 4980.0 – C57
2021-06-20 22:44:02 S 17 04 27.552 -68 46 43.50 – V C57
2021-06-20 22:44:02 s 1 -173088.86 0 +283176.67 3990.0 – C57
2021-06-20 22:54:02 S 17 04 29.090 -68 46 42.28 – V C57
2021-06-20 22:54:02 s 1 -173298.00 1 +282693.57 980.0 – C57
2021-06-20 23:04:02 S 17 04 30.715 -68 46 42.24 – V C57
2021-06-20 23:04:02 s 1 -173506.47 6 +282209.41 5950.0 – C57
2021-06-20 23:14:02 S 17 04 32.424 -68 46 39.11 – V C57
2021-06-20 23:14:02 s 1 -173714.28 2 +281724.19 8890.0 – C57
2021-06-20 23:24:02 S 17 04 34.534 -68 46 38.32 – V C57
2021-06-20 23:24:02 s 1 -173921.41 6 +281237.91 9790.0 – C57
2021-06-20 23:34:02 S 17 04 36.216 -68 46 37.99 – V C57
2021-06-20 23:34:02 s 1 -174127.87 5 +280750.56 8660.0 – C57
2021-06-20 23:44:02 S 17 04 38.148 -68 46 36.41 – V C57
2021-06-20 23:44:02 s 1 -174333.65 8 +280262.14 5470.0 – C57
2021-06-20 23:54:02 S 17 04 39.451 -68 46 36.44 – V C57
2021-06-20 23:54:02 s 1 -174538.76 2 +279772.67 220.0 – C57
2021-06-21 00:04:02 S 17 04 41.256 -68 46 34.57 – V C57
2021-06-21 00:04:02 s 1 -174743.18 3 +279282.12 2910.0 – C57
2021-06-21 00:14:02 S 17 04 43.334 -68 46 34.75 – V C57
2021-06-21 00:14:02 s 1 -174946.92 0 +278790.51 3520.0 – C57
2021-06-21 00:34:02 S 17 04 46.579 -68 46 31.37 – V C57
2021-06-21 00:34:02 s 1 -175352.33 0 +277804.07 8500.0 – C57
2021-06-21 00:44:02 S 17 04 48.415 -68 46 30.58 – V C57
2021-06-21 00:44:02 s 1 -175553.99 8 +277309.25 2850.0 – C57
2021-06-21 00:54:02 S 17 04 50.198 -68 46 28.49 – V C57
2021-06-21 00:54:02 s 1 -175754.97 2 +276813.36 5100.0 – C57
2021-06-21 01:04:02 S 17 04 51.854 -68 46 26.54 – V C57
2021-06-21 01:04:02 s 1 -175955.24 7 +276316.39 5230.0 – C57
2021-06-21 01:14:02 S 17 04 53.897 -68 46 26.54 – V C57
2021-06-21 01:14:02 s 1 -176154.82 3 +275818.36 3250.0 – C57
2021-06-21 01:54:02 S 17 05 00.660 -68 46 23.23 – V C57
2021-06-21 01:54:02 s 1 -176946.07 1 +273815.45 3980.0 – C57
2021-06-21 02:14:02 S 17 05 05.678 -68 46 21.18 – V C57
2021-06-21 02:14:02 s 1 -177337.42 4 +272807.53 6430.0 – C57
2021-06-21 02:24:02 S 17 05 05.885 -68 46 18.98 – V C57
2021-06-21 02:24:02 s 1 -177532.02 4 +272301.95 9390.0 – C57
2021-06-21 02:34:02 S 17 05 07.646 -68 46 15.31 – V C57
2021-06-21 02:34:02 s 1 -177725.90 2 +271795.29 180.0 – C57
2021-06-21 02:44:02 S 17 05 09.619 -68 46 16.18 – V C57
2021-06-21 02:44:02 s 1 -177919.05 5 +271287.54 8780.0 – C57
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-07-23 05:30:00 67479907 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)